Sebring Track Day

Knockdown

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Thought you might enjoy a lap around Sebring .......


Mach 1 HP
Street/Rain Tire Setup - 265F:285R/35 19 MPS4S
75-80degF

Impressions
Even with these tires, car was very predictable and performed nicely.
The DTC60F/30R pads, Steeda 2 piece front rotors, RBF660 fluid performed really good, nice bite.
The Schroth QuickFit Pro 4 point harnesses were a great addition.

Looking forward to running the CUP2 tires!

 

dhborden

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Thought you might enjoy a lap around Sebring .......


Mach 1 HP
Street/Rain Tire Setup - 265F:285R/35 19 MPS4S
75-80degF

Impressions
Even with these tires, car was very predictable and performed nicely.
The DTC60F/30R pads, Steeda 2 piece front rotors, RBF660 fluid performed really good, nice bite.
The Schroth QuickFit Pro 4 point harnesses were a great addition.

Looking forward to running the CUP2 tires!
Be careful with the Cup 2s and paint stripes. As I discovered (the hard way) at Track Attack, the Cup 2s don't give much warning when you're too close to their limit. I like the fact the 4/Ss protest (squeals) when you get close.
 

Gnatsum21

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Love Sebring, my fav track in the US.
 
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Knockdown

Knockdown

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Be careful with the Cup 2s and paint stripes. As I discovered (the hard way) at Track Attack, the Cup 2s don't give much warning when you're too close to their limit. I like the fact the 4/Ss protest (squeals) when you get close.
Thanks for the warning. That's why I mostly went with the PS4S setup since this was our first track day with the car, had to tune up the driver a bit.
 

dhborden

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Thanks for the warning. That's why I mostly went with the PS4S setup since this was our first track day with the car, had to tune up the driver a bit.
The only "warning" I had was a discussion with the instructors about the threshold difference between the 4S's and Cup2s (they described the Cup2s as a cliff compared to the 4S's as a slope) about two hours before I discovered when the Cup2s let go, they let go VERY quickly, and so found a wall with one of the Racing School GTs (thankfully not one of the Mach 1s!) coming out of turn 7 on the full Roval course. I am happy to report the restraint systems (4-point and HANS) work extremely well for a head-on collision with a jersey barrier! I'm not happy to report the car didn't come out of it as well as I did.
 


Atlas1

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The only "warning" I had was a discussion with the instructors about the threshold difference between the 4S's and Cup2s (they described the Cup2s as a cliff compared to the 4S's as a slope) about two hours before I discovered when the Cup2s let go, they let go VERY quickly, and so found a wall with one of the Racing School GTs (thankfully not one of the Mach 1s!) coming out of turn 7 on the full Roval course. I am happy to report the restraint systems (4-point and HANS) work extremely well for a head-on collision with a jersey barrier! I'm not happy to report the car didn't come out of it as well as I did.
You made it through ok that’s all that matters. Do those gt’s run the same cup2’s as the Mach 1?
 

shogun32

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Nice vid. for added realism it needs a view of driver's hands sawing at the wheel, and a face shot overlay where we can see the whites of his eyes getting wider as the braking point (or walls) arrive. :)
 
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trackd

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The only "warning" I had was a discussion with the instructors about the threshold difference between the 4S's and Cup2s (they described the Cup2s as a cliff compared to the 4S's as a slope) about two hours before I discovered when the Cup2s let go, they let go VERY quickly, and so found a wall with one of the Racing School GTs (thankfully not one of the Mach 1s!) coming out of turn 7 on the full Roval course. I am happy to report the restraint systems (4-point and HANS) work extremely well for a head-on collision with a jersey barrier! I'm not happy to report the car didn't come out of it as well as I did.
Did the instructors say anything else about the Cup 2s, best hot pressures and temps? I’m planning to start 28 cold to 36 hot, wonder if that’s in the ballpark.
 

luc

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Love Sebring, my fav track in the US.
Have you driven Laguna Seca or Sears Point?
I just can’t believe that a track without some serious elevation changes can be considered the favorite
 

TeeLew

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Have you driven Laguna Seca or Sears Point?
I just can’t believe that a track without serious elevation changes can be considered the favorite
Not to mention the only decent restaurant in the area (Don Jose's) isn't what it once was...
 
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dhborden

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Did the instructors say anything else about the Cup 2s, best hot pressures and temps? I’m planning to start 28 cold to 36 hot, wonder if that’s in the ballpark.
We never got around to that. The school's prep team sets the cars up so there was no issue for that. When I did HPDE with my 2015, I used tire marker to see how much the sidewalls were flexing and adjusted the pressure between sessions. If I recall, they were 38 to 40 hot, but those weren't Cup2s or 4S's.
 

 
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